baber/WOPTO huggingface dataset:
Patent GB-438822-A (GB)
Title: Spinning centrifugal motor arrangements
IPC: B04B9/12
Filed: 1934-09-28
Abstract: 438,822. Centrifugal spinning-apparatus. ODAJIMA, S., 757, Oaza Toba, Toba-machi, Shima-gun, Miye, Japan. Sept. 28, 1934, No. 27889. [Class 120 (ii)] [See also Group II] Centrifugal spinning-apparatus comprises a pot 1 enclosed by a casing 2 fixed to the frame of the driving-motor 3, a ring guide 9 fixed to the inside of the casing to limit the vibratory movement of the shaft, and a ring weight 6 which rests loosely on the lid 4 around the annular guard 8, and is adapted to adjust its position to diminish vibration while the machine is running. In a modification a heavy lid is used without the ring weight, the diameter of the lid rim being greater than that of the top of the casing so that the lid can adjust its position. In another modification the ring weight 6 is arranged in a support 11, Fig. IV, on the outer side of the casing. Elastic material 10 may be placed beneath the weight.
Patent GB-421217-A (GB)
Title: Method of preparing aluminium and zinc lithographic plates for planographic and off-set printing
IPC: B41N1/08
Filed: 1933-10-11
Abstract: 421,217. Printing surfaces. WOLF, O., 20, Halbgasse, Vienna. Oct. 11, 1933, No. 28025. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 14, 1934.] [Class 100 (ii)] [See also Groups XX and XXXVI] Lithographic plates which are also suitable for offset printing are prepared by producing upon smooth ungrained plates of aluminium, zinc, and their alloys, before the application of a printing impression, a lithographic stone-like coating of the compounds of the metal of the plates by anodic electrolytic treatment. The voltage employed is a low direct current or alternating current voltage of less than 40 volts, and the electrolyte consists in the case of zinc and its alloys of a saturated solution of an alkali carbonate, with a current density of 2 to 3 amp/dm<2> for 10 to 30 minutes, and in the case of aluminium and its alloys of a <1>/3 to 5 per cent solution of a dilute acid such as nitric acid which does not dissolve the metal or its oxide, with a current density of 1 to 2 amp/dm<2> for 10 to 30 minutes. Examples given are : (a) for aluminium, ¢ per cent nitric acid, 1 to 2 amp /dm<2> with 7 to 10 volts A.C. for 15 to 20 minutes ; (b) for zinc, a saturated (37 per cent) solution of potassium carbonate solution, 2 to 3 amp/dm<2> with 10 to 12 volts D.C. for 10 to 12 minutes. After the formation of the coating, the surface is washed with dilute acetic or nitric acid, if zinc is used, or with water if aluminium is employed. The design is produced subsequently to the coating by transfer, drawing, e.g. in chalk or pencil, by a photomechanical process, or in any other way, and etching agents in the wetting fluid during the subsequent printing are unnecessary. Specifications 6701/00, 21322 /04, [both in Class 100], 223,994, 290,901, [both in Class 41], and 401,579 are referred to.
Patent GB-1495552-A (GB)
Title: Apparatus for air-conditioning a room a vat or the like
IPC: F25B13/00
Filed: 1974-10-15
Abstract: 1495552 Air conditioning plant M VIGNAL and H CHAPUIS 15 Oct 1974 28060/74 Headings F4H and F4U  A reversible air conditioning apparatus has a compressor 1, a reversing valve 2, a heat exchanger 3 with fan 4, dehydration, cartridges 5, a capillary tube 6, and a U-shaped tube 7 located in a hole in the ground 8 and icing of the tube 7 is counteracted by two U-tubes (not shown) in closed circuit with a compressor, the circuit containing a refrigerant, one of the U-tubes being disposed in the same hole as the tube 7, and the other in a different hole. For heating a room the refrigerant is delivered by the compressor to the heat exchanger 3 where it is cooled down by air which blows through the heat exchanger to warm the room. Cooled refrigerant passes through the dehydration cartridges 5 and expands through the tube 7 before returning to the compressor at a temperature which is approximately the same as the temperature in the hole 8. For cooling a room the cycle is reversed through the valve 2. Specification 638,947 is referred to.
Patent GB-1370216-A (GB)
Title: Crimpable continuous fibre and process for its production
IPC: D01D4/00
Filed: 1972-06-15
Abstract: 1370216 Crimpable filaments AKZO NV 15 June 1972 [28 June 1971] 28067/72 Heading B5B A crimpable filament consists of a single melt-spinnable synthetic polymer wherein the solution viscosity of the polymer varies continuously across the fibre. As illustrated in Fig. 3(a), the solution viscosity profile is asymmetrical. Such filaments may be produced by use of a spinneret such as is shown in Fig. 1. Here, the molten polymer, supplied by duct 1<SP>1</SP> to filter plate 5, then passes through a heating element holding plate 7 into primary duct block 4. In this block there are formed primary ducts 10 which convey the polymer to the spinneret plate 3. Eccentrically placed in ducts 10 are heating elements 11 which more strongly heat, and consequently reduce more the viscosity of, the polymer nearest to them.  The spun filaments may be stretched and heated to develop the crimp. The process is illustrated for polyethylene terephthalate.
Patent GB-856826-A (GB)
Title: Improvements in or relating to servo systems
Inventor: MEREDITH DENNIS LELLO
IPC: G05D1/00
Filed: 1957-09-05
Abstract: 856,826. Automatic control systems. SMITH & SONS (ENGLAND) Ltd., S. Sept. 5, 1958 [Sept. 5, 1957], No. 28071/57. Class 38 (4). In a servo-system in which signals dependent on a common control quantity are applied to a plurality of amplifiers each of which energizes a servomotor operating a common load, the transmission characteristic of each of a number of the amplifiers is controlled in dependence on a comparison between the output of that amplifier and a common reference value, In Fig. 1 control signals 2, e.g. derived from three similar attitude or rate gyros on an aircraft, are each applied through a separate pair of amplifiers 3 and 5 in cascade to operate electric servomotors 6. The three servomotors actuate a common load, e.g. an aircraft control surface,. through electrically - energized and torque - limiting clutches (not shown), and apply position and/or rate follow-up signals to the input of amplifiers 5. The mean or middle value of the outputs of amplifiers 5 is derived in each of three circuits 9 and any difference between the outputs of these circuits and the individual amplifier outputs is automatically eliminated by feeding back the differences through limiting demodulators 11 to control the gains of amplifiers 3. The differences are also applied through limiters 12 to the inputs of amplifiers 5 to eliminate drift errors. In a modification, in which limiters 12 are omitted, the output of one of the amplifiers 5 is also compared with each of the outputs of the other amplifiers 5 and the differences utilized to control the gain of the other amplifiers 5 through integrators. In this arrangement the integral of long-term components of the control signal is also applied to the input of the uncontrolled amplifier 5. In another modification the signals fed back from the servomotor to the inputs of amplifiers 5 are each amplified and the gains of amplifiers for this purpose are controlled in a manner similar to that in which the gains of amplifiers 3 are controlled. Design and testing of the apparatus to avoid undesirable operation of the systems is described.
Patent GB-427173-A (GB)
Title: Improvements relating to stands for portable wringers
IPC: D06F1/00
Filed: 1933-10-11
Abstract: 427,173. Wringer stands. HOLMES, J. W., 20a, High Street, Peckham, London. Oct. 11, 1933, No. 28081. [Class 138 (ii)] A stand for supporting a wringer comprises a platform 2 supported at each end by a pair of inclined legs 1 and having another platform 6 pivoted thereto. The platform 6 carries a bar 8 by means of two pairs of inclined legs 7 and the wringer is clamped or otherwise secured to the bar. When the wringer is not in use the platform 6 may be folded down so that, together with the platform 2, it forms a table. A water deflecting flap is secured to the bar and extends to the rear edge of the platform. Reference has been directed by the Comptroller to Specification 306,729, [Class 138 (ii)].
Patent GB-603119-A (GB)
Title: Improvements in or relating to electrically resonant cavities
IPC: H01P7/06
Filed: 1945-10-24
Abstract: 603,119. Electric resonators. PHILCO RADIO & TELEVISION CORPORATION. Oct. 24, 1945, No. 28121. Convention date, April 28, 1944. [Class 40 (viii)] [Also in Group XXXVI] In resonant cavities, undesired modes or wave patterns are eliminated by absorption in lossy material (such as semi-conductive plastic material, porcelain containing carbon, paint containing graphite, steel wool, plaster of Paris mixed with lamp black, or powdered iron with a cement binder) disposed in regions which are nodal for electric currents in the desired patterns. All wave patterns except those of type TEon where n is an integer, may be suppressed in a cylindrical resonator, Figs. 1, 2 (not shown), by locating lossy material in two annular gaps between the end plates and the cylindrical wall. In a cylindrical wave meter or echo box, Fig. 4, the effective length is determined by plates 12, 13 for which coarse and fine screw adjustments are respectively provided, and small gaps are left at 16, 17 so that energy of undesired wave patterns, viz. all except those of a TEon type, can penetrate the end cavities 18, 19 where they are absorbed by lossy material such as steel wool enclosed in a wooden box 20 or by imperfectly conductive paint 23. Wave patterns of all type except TEo2 are damped out in a resonator having cylindrical walls 9, Fig. 5, if a ring of lossy material 26 is embedded in each of the end plates 10, the ring having such a diameter that it corresponds with a nodal region of current in TEo2 patterns. For selecting patterns of the TEo3 type, two rings of appropriate diameters may be located in each end plate, the diameters being calculated in terms of Bessel functions. Larger numbers of rings may be used for selecting wave patterns belonging to higher modes. In an alternative form of resonator for selecting TEo2 patterns, Fig. 8, a circumferential gap 29 admits all TM waves to an annulus 30 of steel wool or the like, and also all TE waves whose halfwave-length is an even submultiple of the height of the cylinder. All patterns other than TEo2 are further suppressed by lossy rings 34, 35 located at a nodal region for current. On the other hand, TM waves are favoured and TE waves suppressed in a cylinder having longitudinal slots- 39, Fig. 10, leading to a jacket of lossy material 41. Alternatively, Figs. 11, 12 (not shown), strips of lossy material may be embedded in longitudinal grooves.
Patent GB-1402221-A (GB)
Title: Electronic watch having quartz crystal controlled oscillator and frequency divider arrangement for driving a display device
IPC: G04G99/00
Filed: 1973-06-13
Abstract: 1402221 Electronic timepieces HUGHES AIRCRAFT CO 13 June 1973 [3 July 1972] 28126/73 Heading G3R [Also in Division H3]  In an electronic timepiece (e.g. a ladies watch) comprising a quartz crystal controlled oscillator circuit (providing a time base frequency of at least 1 MHz) and frequency dividing arrangement for driving a time display device (e.g. liquid crystal, light-emitting diodes or an electric motor driving hands), the quartz crystal 13 Fig. 3 is coupled to a first integrated circuit chip 15 including the oscillator circuit and a first frequency divider for dividing down e.g. to about 100 KHz. A second integrated circuit chip 17 is connected to the first and includes a second frequency divider for producing low frequency signals e.g. 1 pulse/hour for driving the display; the second IC chip having an inherently lower leakage current and inherently higher nodal capacitance than the first IC chip. The first IC chip 15, has relatively low nodal capacitance, achieved by the use of a semiconductor layer (silicon) deposited on an insulating layer (sapphire) whereby it can operate at extremely high frequencies without excessive power consumption. The chip 17 also includes electronic circuitry (not described) which produces from the second divider output, signals suitable for driving a digital display as shown Fig. 8. Therein hours, minutes, day and date are displayed, also the first digit of the seconds and ten dots which are illuminated successively to indicate passing seconds. When for instance the 59th second arrives, the first digit "5" and nine dots are illuminated. Battery voltage is converted to a higher voltage to operate a liquid crystal display. Alternatively, the output of the second frequency divider may be used to drive a motor coupled to hands Fig. 11 (not shown). For frequencies in the order of 1MHz, a D.T. cut crystal is used mounted as illustrated in Figs. 4, 5 (not shown). For frequencies about 9 MHz and A.T. cut crystal is used supported at each end, as illustrated Figs. 6, 7 (not shown). Known types of oscillator and frequency divider circuitry employing C/MOS elements may be used. Suitable circuits are illustrated in Figs. 15, 16 (not shown).
Patent GB-1022036-A (GB)
Title: 3-alkyl substituted 4-methyl-phenyl-n-methyl carbamates
IPC: C07C271/06
Filed: 1964-07-08
Abstract: The invention comprises compounds of general formula <FORM:1022036/C2/1> wherein R is H or CH3.  They are prepared by reacting phenols of general formula <FORM:1022036/C2/2> wherein R is as defined above with methyl isocyanate.  The reaction may be carried out in an inert solvent, e.g. benzine, benzene, or dioxan and in the presence of a catalyst, e.g. triethylamine or stannous a -ethyl-cuproate at 0 DEG  to 150 DEG  C.  The phenol starting materials may be prepared by alkylation of 4-methyl phenols using propylene or butylene or by isomerization of 2-alkyl-4-methyl phenols.  In Example 7 3-isopropyl-4-methyl phenol is reacted at 60 DEG  C. with an equimolar amount of methyl isocyanate to give a product which on recrystallization melts at 90 DEG  to 90.5 DEG  C. and in Example 8 3-sec-butyl-4-methyl phenol on reacting with methyl isocyanate gives a product which after recrystallization melts at 103-104 DEG  C.  3-isopropyl-4-methyl phenol is prepared by reacting p-cresol with propene at 150-300 DEG  C. and 9 atmospheres pressure. The product is recovered by distillation.  3-sec-butyl-4-methyl phenol prepared as above using n-butene.ALSO:Insecticidal and acaricidal agents contain carbamates of general formula <FORM:1022036/A5-A6/1> where R is hydrogen or methyl in admixture with a solid or liquid diluent or carrier.  The compositions may be used in the form of emulsifiable concentrates, spray powders, pastes, soluble powders, dusting agents granulates, and poison baits.  The compositions contain 0.1 to 95% by weight of the agent.  Specified diluents and carriers are acetone, aromatic hydrocarbons which may be chlorinated, water, alcohols, kaolins, chalk, synthetic ground minerals, non ionic and anionic emulsifiers, and dispersing agents. When used in poison baits flour, sugar, powdered milk, powdered egg or dried yeast may be added.
Patent GB-284793-A (GB)
Title: Improvements in apparatus for sintering metal ore
IPC: F27B21/06
Filed: 1926-11-09
Abstract: 284,793. Anderson, P. Nov. 9, 1926. Open pan sintering apparatus of the kind in which tiltable pans a journaled at a<1> are mounted on a frame v rotatable about a vacuum chamber b have the pipes t connecting the pans and vacuum chamber extending from the bottom of each pan upwards into the plane of the journals a<1> which is about midway up the height of the pans. The pipe t is at right angles to the journals a<1>. Each pan is connected to the vacuum chamber by a coupling comprising a tube l slidable through a stuffing-box m into the tube d and having a flange. l<1> containing a packing ring which engages the end of the pipe t. The tube l is actuated against the action of a spring m' by a lever s and retained in the disconnecting position by a catch-lever v<1>.
Patent GB-908940-A (GB)
Title: Improvements relating to electrical inverter arrangements
Inventor: VICKERY ERNEST CLEMENTS
IPC: H05B41/282
Filed: 1959-08-18
Abstract: 908,940. Supply circuits for space discharge apparatus. STONE & CO. (DEPTFORD) Ltd., J. July 29, 1960 [Aug. 18, 1959], No. 28208/59. Class 38 (4). A supply circuit for supplying a number of fluorescent lamps 4 on a train from the train generator 1 comprises a transistor inverter which has a single driving oscillator 6 separate from one or more output stages 7, the output stages and preferably the oscillator being mounted on the outside of the train so as to utilize the flow of air due to the movement of the train for cooling the transistors. The apparatus includes harmonic filters 8 to convert the square-wave output of the inverter to a sinusoidal waveform and a surge and ripple suppressor 11 to protect the apparatus against over voltage and to eliminate voltage ripple from the generator 1. The voltage output from the inverter is stepped up to a value suitable for the lamps 4 by a leakage transformer 9 which also serves as the lamp ballast. Alternatively the step-up transformer may be included in the output stage and the lamps provided with a ballast choke.
Patent GB-1245124-A (GB)
Title: Foaming agents
Inventor: RODRIGUEZ ALAN
IPC: A62D1/02
Filed: 1968-06-21
Abstract: 1,245,124. Fire fighting foams. GEORGE ANGUS & CO., Ltd. 8 May, 1969 [21 June, 1968], No. 28232/68. Heading ASA. An aqueous concentrate for producing a fire-fighting foam comprises a hydrolysed protein and 0.05-10% by wt. of a water-soluble perfluoro carbon surfactant. The surfactant may be non-ionic, e.g. CxF( 2x+1 ) SO 2 NR(C 2 H 4 O) n H or anionic, e.g. CxF( 2x+1 ) SO 2 NRCH 2 COOM CxF( 2x+1 ) SO 2 NR(C 2 H 4 O) n SO 3 M CxF( 2x+1 ) COOM CyF( 2y-1 ) OC 6 H 4 SO 3 M CyF( 2y-1 ) OC 6 H 4 COOM CyF( 2y-1 ) O(CH 2 ) 2  COOM H(CF 2 ) x  COOM, in which x is 4-20, y >7, n <20, R is alkyl, and M is a metal, ammonium or amine radical. In a test, 0.1% by wt. of an ammonium prefluoro caprylate is added to a foam concentrate containing 20% by wt. hydrolysed protein.
Patent GB-1118590-A (GB)
Title: Improvements in the felting of articles made of keratinic fibres
IPC: D04H1/08
Filed: 1967-06-20
Abstract: Articles formed wholly or partly from keratinic fibres, e.g wool, are felted by impregnating them with an aqueous liquid and then subjecting them to a mechanical treatment in a bath comprising a hydrocarbon or halogenated hydrocarbon and water until the desired degree of felting is obtained, the mechanical treatment comprising repeatedly immersing the articles in the treatment bath.  The aqueous liquid may be water or an aqueous solution of an alkaline substance, e.g. a fatty amine or an alkali metal polyphosphate or silicate, or a leaching composition made from a substance having an alkaline reaction, the solution preferably having a pH of 9-11 and optionally containing a lubricating and/or softening agent, e.g. a long chain aliphatic or polyoxyethylenic cationic agent such as a polyoxyethylenic dialkyl ammonium chloride.  The articles may be dipped in the aqueous liquid at ambient temperature and excess liquid removed by spin drying so that at least 50% by weight of the liquid based on the dry articles is retained.  The treatment of the articles with the hydrocarbon or halogenated hydrocarbon, e.g. perchlorethylene or trichlorethylene, and water may be effected in a bath in which is rotatably mounted a perforated drum, at 20-70 DEG C for from 30 minutes to 2 hours.  The treating composition may contain water in a quantity approximately the same as that present in the impregnated articles, an anionic, nonionic or cationic emulsifier and a lubricating or softening agent, e.g. a polyoxyethylenic fatty alcohol or polyoxyethylenic dialkyl ammonium chloride.  The treatment may be combined with a water proofing, bleaching, oil proofing, mothproofing, antistatic or bactericidal treatment. Knitted woollen berets or slightly pre-felted rabbit's wool hat shapes may be treated.
Patent GB-411355-A (GB)
Title: Improvements in and relating to vapour electric discharge devices
IPC: H01J17/52
Filed: 1933-10-13
Abstract: 411,355. Metallic-vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A.; 1, Washington Avenue, and Anderson, F. H.; 1719, Avenue A, Schenectady, New York, U.S.A.) Oct. 13, 1933, No. 28356. Convention date, Oct. 15, 1932. [Class 39 (i).] A vapour-filled discharge device is provided with an anode 3, a liquid cathode 7 and a solid cathode 13 which is connected and arranged near, to the liquid cathode so as to be heated to an electronemitting temperature solely by the discharge, which occurs initially between the liquid cathode and the anode. The mercury cathode 7 is connected to the container to which arcing is prevented by a shield 9. An insulator 18 supports a control grid 20, and a shield 17 restricts the discharge path between the mercury cathode and the anode to increase the heating of the cathode 13. The shield 17 may be given a potential. The cathode consists of a graphite base 14 supporting an electron-emitting member 13, which is formed of graphite permeated with a solution or a suspension of an alkaline or rare earth oxide, or of a mixture of a conducting powder and an alkaline or rare earth oxide, or of graphite plates separated by barium carbonate. The arc may be ignited by means of an anode 5 operated by an electromagnet 6. Specification 13413/06, [Class 39], is referred to.
Patent GB-738173-A (GB)
Title: Improvements relating to vapour diffusers
Inventor: IBBETSON MYER JOHANAN
IPC: B05B1/00
Filed: 1952-11-11
Abstract: 738,173. Vapour diffusers. IBBETSON & CO., Ltd., A. Sept. 28, 1953 [Nov. 11, 1952; July 2, 1953], Nos. 28391/52 and 18370/53. Class 81 (1). In a wick and cap assembly for a vapour diffuser of the type comprising a bottle or other container, a wick or other capillary member extending within the bottles and withdrawable in part through the mouth of the bottle, and a cap or closure means, the wick is secured to a support of a plastic material, e.g. polyvinyl chloride and polyethylene, having at one end means integral therewith to secure the support directly to the cap. As shown in Figs. 1, 2 the support comprises an elongated substantially rectangular strip of plastic material 4 having substantially rectangular slots 5, 6 adjacent the upper and lower ends through the upper of which the wick 7 extends at a point intermediate its length so that the two limbs thereof extend downward on either side and are stapled together through the slot 6 with one limb extending beyond the lower end of the support. Extending from the upper end of the strip is a neck 12 with a circular disc 13 attached of such diameter that it may be forced past the threads of the screw cap 3 normally held on the externally threaded neck 2 of the bottle to secure it thereto. In a modification shown in Fig. 5 the neck portion 12 extends through the cap and terminates in a head 15 which in conjunction with a disc 13 of less than the minimum diameter of the threads of the cap secures the support thereto.